Home / 30,100.63-45,159.87-10,381.18

Finding the Fourth Proportional to 30,100.63, 45,159.87 and 10,381.18

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Solution

The fourth proportional to 30,100.63, 45,159.87 and 10,381.18 is: 15,574.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.63 : 45,159.87 = 10,381.18 : x
  2. Step 2: Convert to fraction form
    30,100.63/45,159.87 = 10,381.18/x
  3. Step 3: Cross multiply
    30,100.63x = 45,159.87 × 10,381.18
  4. Step 4: Simplify right side
    30,100.63x = 468,812,739.25
  5. Step 5: Solve for x
    x = 468,812,739.25/30,100.63
  6. Step 6: Final answer
    x = 15,574.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.